有非零不共线向量OA,向量OB.且2*向量OP=x*向量OA+y*向量OB,若向量PA=λ*向量AB(λ∈R),则点Q(x,y)的轨迹方程是().
A.x+y-2=0B.2x+y-1=0C.x+2y-2=0D.2x+y-2=0